... Special cylinder seamless steel industrial gas cylinderSpecial oxygen cylinder1, Through adopting ... kinds of seamless steel gas cylinder, nominal service pressure rangers from 8 Mpa to 30 Mpa and ... from 0.4 liter to 80 liter.2, Our products are mainly used to fill with permanent ... , Carbon Dioxide etc..., it can widely be applied to industry, National defense, Medicine, Scientific research and so ...